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    Integrated process control valve
    2.
    发明公开
    Integrated process control valve 失效
    Integriertes Prozess-Regelventil。

    公开(公告)号：EP0462432A2

    公开(公告)日：1991-12-27

    申请号：EP91108859.9

    申请日：1991-05-29

    申请人： VALTEK INCORPORATED

    发明人： Haines, Lawrence A. ,  Messano, Edward A. ,  Beatty, Kenneth L. ,  Gooch, Robert E. ,  Glenn, Alan H. ,  O'Hara, Dennis E.

    IPC分类号： G05D7/06 ,  F16K31/124 ,  F16K37/00

    CPC分类号： G05D7/0635 ,  Y10T137/2409 ,  Y10T137/7761

    摘要： An integrated process control valve includes a fluid valve body having an inlet for receiving fluid, an outlet for discharging fluid, a fluid flow passage connecting the inlet and outlet, and a controllable throttling element which is moveable to selectively vary the flow rate of fluid through the fluid flow passage. The valve also includes an actuator coupled to the valve body and responsive to control signals for selectively moving the throttling element, a first pressure sensor disposed at the inlet of the valve body for producing a first signal representing the pressure of the fluid at the inlet, a second pressure sensor disposed at the outlet of the valve body for producing a second signal representing the pressure of the fluid at the outlet, a position sensor for producing a position signal indicating the position of the throttling element, and a utilization device for receiving the signals and either producing a display representing the signal values and/or producing control signals for supply to the actuator to cause the actuator to move the throttling element to thereby vary the fluid pressure at the inlet and outlet of the valve body. The control signals include pneumatic signals for developing pressures in the actuator to cause the actuator to move the throttling element. Sensors are provided for detecting the values of the pneumatic signals which may be displayed by the utilization device along with the display of representations of the other signal values, including the position signal values.

    摘要翻译： 集成过程控制阀包括具有用于接收流体的入口的流体阀体，用于排出流体的出口，连接入口和出口的流体流动通道，以及可控制的节流元件，其可移动以选择性地改变流体的流速 流体流动通道。 阀还包括致动器，其联接到阀体并响应于用于选择性地移动节流元件的控制信号;设置在阀体入口处的第一压力传感器，用于产生表示入口处的流体压力的第一信号， 第二压力传感器，设置在阀体的出口处，用于产生表示出口处的流体的压力的第二信号，用于产生指示节流元件的位置的位置信号的位置传感器，以及用于接收 并且产生表示信号值的显示器和/或产生控制信号以供给致动器，以使致动器移动节流元件，从而改变阀体入口和出口处的流体压力。 控制信号包括用于在致动器中显影压力以使致动器移动节流元件的气动信号。 提供了用于检测可由利用装置显示的气动信号的值以及包括位置信号值的其它信号值的表示的显示的传感器。